Lubricating device



Aprli E35 Y A. Y. DODGE l 3,9999447 LUBRICATING DEVCE Filed April 195267 55 58 9 F 6a v N D 6) 5/ 66 INVENToR.

75 Z Q, 53 56 670m. )(00065 A TTORNEY Patented Apr. 3U, i935 Aldiel it.Dodge, South Bend, Ind., assigner to 'llhe Lubrication Corporation,South Bend, limiti., a corporation oi Delaware application april i,i932, serai No. coatto it Claims.

This invention relates to improvements in 1ubricant discharge nozzlesand more particularly nozzles of the type incorporating means forclamping the discharge orice of the nozzle in engagement tightly with alubrication nipple or fitting associated with the bearing or parts to belubricated.

An object of the invention is to provide a lubricant discharge nozzle ofthe clamp type wherein the clamping mechanism is operated by therotation of a cam about an axis transverse tothe longitudinal axis ofthe nozzle.

Another object is t provide a clamp type lubricant discharge nozzleincorporating valve means for automatically shutting on the ow oflubricant through the nozzle when the nozzle is disengaged from thentting.

Another object is to provide a lubricant discharge nozzle of the clamptype in which the mechanism for moving the clamping elements isirreversible through stresses imposed thereon as by the pressure oflubricant fed through the nozzle tending to push the nozzle away fromthe fitting.

Another object is to provide ar lubricant discharge nozzle havingadjustment' means to obtain full clamping and unclamping function withminimum movement of the clamp actuating member.

Other objects, the advantages, and uses of the invention, will be, orshould become apparent after reading the following description andclaims and after consideration of the accompanying drawing forming apart of this specification, in which;

Fig. l is a sectional view of a clamp type lubricant discharge nozzleconstructed in `:accordance with my invention;

Fig. 2 is a fragmentary viewof parts illustrated in Fig. l, showing thelubricant control valve closed; v y

Fig. 3 is a sectional Lview as along the line III- III of Fig. 1i;

Fig. li, is a sectional view of another form of the discharge nozzle;and

Fig. 5 is a sectional View as along the line V-V of Fig. 4'. f

In general the lubricant discharge nozzles se lected for illustrationherein comprise an elongated body A, including a forwardly` extendingtubular member terminating in an integral lubricant nipple engagingclamp element B, a lubricant conduit C within the body A having adischarge orifice D in registration with the` clamp."

element B, cam mechanism E .for causing relative movement between theconduit C; and the clamp element B, a valve F operable upon actuation ofthe cam mechanism E to control the flow of lubricant through the nozzle,and a manually engageable member G for operating rthe cam mechanism E. l

The discharge nozzle illustrated in Figs. l to 3 is characterized by theconstruction of the manually engageable cam operating member G in theform of a pistol hand grip by means of which the nozzle may be supportedand operatedin use. In this nozzle the body A comprises a member 2having 4an enlarged bore 3 in its rearward end closed by a screwthreaded plug t and the tubular member t including the clamping elementB secured to the member 2 by an adjustable screw threaded bushing thaving lock nutsl and 8' associated therewith whereby the members t andt of the body A may be moved'toward or away from each other duringinitial adjustment of the nozzle and to correct error in therelationship of the body A and the conduit C as through wear from usage.

The conduit C is preferably constructed of three parts t, it and i ihaving aligned bores therethrough. The part il incorporating thedischarge orifice D may, if desired, be formed integral with the partiii. It has been shown as a separate part, however, since such anarrangement more readily lends itself to heat treatmentl of the part 9as in hardening the metal adjacent the discharge oriiice for wearresisting purposes. A stud screw l2 extends through the wall ofi themember t and into a groove it formed on the outer wall of the part 9 toprevent rotation of the discharge oriiice D relative to the clampingelement B. y

The clampingelement B and the cooperating portion of the conduit C withits discharge orifice D is of the general type illustrated and describedin the United States patent to Herlihy Re. 18,288 and is intended foruse with a lubrication nipple or itting N having a spherical head iii.The discharge orice'D communicates with the bore of theconduit C and isformed to partially receive the head i5 of the tting and to establish anannular contact therebetween to provide a lubricant tight sealmaintained against relatively high lubricant pressure by the function oithe clampingmechanism in the manner hereinaitendescribed. Y The internaldiameter of the conduit part it.. is larger than that of the part 9andthe major portion-oi' the part it, as indicated at ifi/as is also theadjacent portion oi the rearward end ci the part it, as indicated at it.An annular pack- V.ing washer l@ is loosely disposed between theadjacent ends of the parts I0 and II of the conduit so as to provide alubricant tight seal therebetween when the parts are compressed againstone another. A metal block 2| is slidably disposed within the bore 3 ofthe body A and formed with an enlarged bore 22 within which the adjacentend of the part II is partially received and fixed. The bore 22communicates with an aligned bore 23 of lesser diameter. A steel ball 24forming the valve F is disposed within the bore 22 and held yieldinglyagainst the adjacent mouth of the bore II of the part II by acompression spring 25 one end of which bears against the ball 24 and theother end against the shoulder formed by the juncture of the bores 22and 23.

In Fig. 2 I have shown the ball 24 as seated upon the conduit asdescribed, which condition is only permissible upon relative movement ofthe parts I0 and I I of the conduit away from one another, thus leavinga slight gap 26 in that space occupied by the washer I9. 'Ihis is due tothe presence of a tubular valve operating member 21 disposed within thebores Il and I8 of the parts II and Ill of the conduit one end of whichis tapered off, as shown at 28, to contact with the ball 24 to move theball away from its seat against the action of the spring 25 when theparts I0 and I I are compressed against one another, as shown in Fig. 1,such as by forward thrust applied to the block 2| while the head of thefitting N is engaged with the discharge orifice and the clamping elementB.

Means for moving the block 2| forwardly to provide relative thrustbetween the body A and.

the conduit C to clamp the fitting to the nozzle and compress ,the partsI0 and II against one another to open the valve comprises the cammechanism E. The mechanism E includes a cylindrical cam member 3|disposed eccentrically upon the upper end of a cylinder 32 forming thecam actuating member or pistol grip G. The cylinder 32 with theeccentrically disposed cam 3| is rotatably mounted upon a tubular member33 which is secured by threaded engagement, as shown at 34, to the block2| and is in communication with the bore 23. The lower end ofl themember 33 has an externally threaded connector stud 35 by means of whichthe nozzle may be connected with a lubricant conducting hose forming apart of the lubricant pump or dispenser assembly. The cam member 3|extends within a relatively long bore 31 through the side wallof themember 2 and has an annular groove 38 formed on its side wall withinwhich the inner end of a stud screw 39 xed to the member 2 extends topermit rotation of the cam member with the manually engageable hand gripG but to prevent longitudinal movement of the cam and cylinder along thetubular member 33.

An adjusting screw 4I is disposed in an internally threaded bore 42centrally located through the plug 4 so as to provide an adjustable stopfor the block 2| as during rearward movement. A lock nut 43 is providedto lock the screw 4I in place when adjusted. As stated in the foregoing,the discharge nozzle, illustrated in Figs.

1 to 3 of the drawing, is intended for support in one hand of theoperator by manual engagement with the pistol hand grip G. Lubricantunder pressure may be conducted to the nozzle from a lubricant pump ordispenser through a suitable hose connected with the stud 35 of thetubular member 33. When the nozzle is in its unclamped position, as whenout of engagement with a lubricant nipple or tting, the valve F Will aS-sume the position shown in Fig. 2 to shut off the flow of lubricantthrough the conduit C. At this time both the pressure of the lubricantapplied to the ball 24 and the thrust of the spring 25 may act upon thetubular member 2l to force the parts 9 and IIl of the conduit C awayfrom the part II and its supporting block 2| thus permitting the ball toseat tightly upon the adjacent mouth of the part of the conduit.

In applying the nozzle to the lubricant nipple or fitting N forservicing the operator should first ascertain that the parts are in theposition shown in Fig. 2, which position may be assumed only throughrotation of the hand grip G and cam 3| away from the position shown inFig. 1 to draw the block 2| rearwardly. The discharge orifice D of theconduit C may then be brought to bear upon the head I5 of the tting by alateral movement of the nozzle over the tting head. The clamping of thenozzle upon the fitting is thereupon brought about by the simpleoperation of rotating the hand grip or cam operating member G to causethe tubular member 33 together with the block 2| to move forwardlytoward or to the position shown in Fig. l. This movement of the block 2|within the body A causes a relative movement between the conduit C withits discharge orifice D and the clamping element B to clamp the orice Din engagement tightly with the head I5 of the fitting and to compressthe parts IIJ and II of the conduit toward one another. As the adjacentends of the parts IU and II are compressed against the washer I9 thetubular valve operating member I8 bearing against the ball 24 opposesforward movement of the ball with the block 2| to cause the ball tobecome unseated from the adjacent end of the bore II of the part II andlubricant under pressure may ow through the valve F, the aligned boresof the conduit C and into the lubricant tting to service the bearing orother parts with which the member is associated;

The reroval of the nozzle from the fitting N may be brought about byrotating the hand grip G in the opposite direction to reverse theclamping function and simultaneously to close` the valve F. p

Should wear occur at the discharge orifice D or upon the adjacentsurfaces of the clamping element B the relationship between the conduitC and the clamping element may be quickly adjusted by means of the'adjustment bushing 6. This bushing 6 may also serve a further functionof permitting the rotation of the member 5 of the body A with itsclamping element B to any particular position which may be convenient tothe operator other than that position shown in Fig. 1 and the partsagain locked against accidental disarrangement by the lock nuts 'I and8.

In Figs. 4 and 5 I have shown another form of my improved lubricantdischarge nozzle wherein lubricant is admitted to the nozzle through ahose which may be connected directly to the rearward" end of the nozzleconduit C. In this form of the nozzle the body A comprises a cylindricalmember 5I and an elongated tubular member 52 corresponding to the member5 including at its forward end an integral clamping element B. Themember 52 is permitted to rotate relative to the member 5I and afriction spider 53 is interposed between the vadjacent and abutting endportions of the members so that the member 52, when rotated to theposition desired, may maintain that position until it is again manuallychanged. The conduit C comprises a part 9 including the discharge oriceD held against rotative movement duit C so as to eliminate lost motionin clamping with respect to the clamping element B by the and unclampingthe nozzle to and' from the iitstud yscrew l2 andr slot i3 as heretoforedescribed. ting. The balance of the conduit C includes a tubular It isto be understood that the embodiments member 5e connected with the part9 andiwith of the invention hereinset forth are presented for a memberof enlarged external diameter by the purpose of illustration only, andvarious threaded engagement,y as shown at 5t. The memchanges may be madewithout departing from ber 55 is disposed within the member 5i of thethe spirit of the invention and the scope of the body A and is providedwith an externally threadclaims. i ed portion 5l at its rearward end forconnection with a lubricant discharge hose .either by direct connectionor through a coupling member such type, a lubricant conduit having adischarge orias an elbow b.- v v lice adapted partially to receive oneside of the Means for causing relative movement between spherical headof a lubricant nipple, a clamping the conduit C and the body A includingthe member adapted toengage with the remote side clamping element lB isprovided for in the cam of said spherical head, and means for causingmechanism E'. The mechanism E comprises a relative movement between SeidClamping memcam member @l formed on a bushing t2 xed ber and saidconduit with said discharge orifice to the upper end of a valve cylindertt. The including a cam rotatable about an axis perpenvalve cylinder 63extends through a bore @il disy posed transversely through the member bband member and said discharge orifice being formed provided with anenlarged cylindrical head porso as to permit the nozzle when clampedupon tion 65 at its lower end disposed within a recess the head of saidnipple to be rotated about the t6 formed in the lower and outer wall ofthe center of said head through an arc of substanmember t5 and within analigned bore Gl formed tially 90 away from the axis of the nipple. f onthe adjacent side wall of the member bl. 2.1i Clamp type lubricantdSGherge hOZZle A passage 05B is provided transversely through thecomprising an elongated body member formed at valve cylinder et so thatwhen the parts are in its outer end with a lubricant nipple-engaging theposition shown in Fig. 4 lubricant may pass clamp member, a lubricantconduit slidably disthrough the valve F from the rearward end of posedwithin said body member,A and having a the conduit C to the dischargeorifice D and into discharge Olilee, the Walls 0f`WhiCh are adapted thetting N. The surface of the cam member to engage with the head of alubricant nipple to I claim:

til is `disposed eccentrically of the axis of the feed lubricantthereto, a tubular lubricant convalve cylinder 63 and is engaged withthe cylinducting member Xed t0 and extending" laterally dricaI walls 69of an opening provided throughI from said conduit and communicatingtherewith, the upperY side wall of the member 5i. A manually engageablehandle G is xed to the bushing tween vsaid clamping member and saidconduit tit as by a, lock pin 'M so that when the handle having saiddischarge orice including a cam G is rotated the valve cylinder tu and.bushing member eccentrically mounted for rotation on t2 will turn tocause relative movement between said lubricant conducting member andengaging the members A and C and hence the clamping said elongated bodymember whereby rotation member B and the discharge orifice 1D of the ofthe cam may cause relative longitudinal movenozzle and at the same timeoperate the valve F. ment between Said body With its Clamp member Whenthe handle or member G is rotated so end Seid Conduit. as to cause theclamping element and the dis- 3- A Clamp type vllibrieent dischargeYIOZZle, charge orifice D to move toward one another the comprising anelongated body member formed at passage te in the valve cylinder et willbecome its outer end with a lubricant nipple engaging aligned with theadjacent bores of tire conduit clamp member, a lubricant conduitSlidablv dis- C to permit theiiow of lubricant therethrough posed withinsaid body member and having a and when the member G is turned to causerela-g' discharge orifice, thewalls of which are adapted tive movementof the element it and discharge tto engage with the head of a lubricantnipple to orice D away from one another the passage te, iced lubricantthereto, a member fixed to and in the valve cylinder will be turned outof regisextending laterally from said conduit and means tration with thebores of the conduit C/and hence for causing relative movement betweenSeid shut ofi the ow of lubricant through the con- Clamping member and-Said 'Conduit helling Seid duit. ,discharge orice including a cammember mount- In this form of nozzle, as in the case off/that ed forrotation on Said xed member and engagform previously described, theapplication of the ing Said bOdY member whereby I'Oietien 0f the nozzleand the operation of its clamping mecha; cam may cause relativelongitudinal movement nism as duringthe servicing operation iziuaybeac-vbetween said body with its clamp member and complished by the operatorby the une of on@ said conduit and anormally closed valve adapted handthus leaving the other hand free for auch to be Opened for passage Qflubricant by reletive other duties as may be required. Iii the fitting N'movement between the body member and the to be lubricated is sodisposed as to be more con- Conduit resuliingilom @Deletion .0f theeveniently approached by 'an upwardand lateral .ti- In e lllbli'ieuhtdischarge 11021216, a clamping movement of the nozzle the member 52including member, a. @Until-lit including` e' Deli 0i @aligned theclamping element lB may be rotated relative Aliibif'iie having axiallyaligned bores of substanto the body fi and the part Si of the conduit Ctially the same size and mounted Vfor relative caused to rotatetherewitlm This is made possible movement toward and away from 011eMother, e by the friction element bill between the arts bl and bt andthe frictionunit between e parts -nxed to one of the parts andprojecting through u and bil of the conduit C. the other part, and aspring pressed valve mem- The bore lil in the member tl may be oi such"ber associated with said other of said conduit dimension as to serve asa stop to limit the relaparts and adapted to bear against the remote endtive movement between the body A and the conthereof and to be displacedfrom saidremote end l. In a lubricant discharge nozzle of the clampIdicular to the axis of the conduit, said clamping' and means for causingrelative movement be-` tube disposed within th bores of said parts andby said tube when said parts are moved toward one another.

5. In a lubricant discharge nozzle, a conduit including a pair ofaligned members having axi- Y ally aligned bores of substantially thesame size and relatively movable toward and from one another, a tubedisposed within said members and fixed to one of said members andprojecting through the other of said members, a spring pressed valvemember associated with said other of said conduit members and adapted tobear against the remote end of said other conduit member when saidmembers are moved away from one another, and to be displaced from theend of said conduit member by said tube when said ymembers are movedtoward one another, said valve member normally engaging said tubelongitudinally to separate said conduit members, and packing meanssurrounding said tube between the adjacent ends of said conduit members.

6. A clamp type lubricant discharge nozzle comprising a conduit having adischarge orice, a clamp" member adapted to engage with the head of thelubricant nipple, force multiplying mechanism for causing relativemovement between the conduit and the clamping member to clamp the4discharge orifice of the conduit in operative engagement upon the headof said fitting, said means including a tubular lubricant conductingmember extending laterally from said conduit and communicatingtherewith, and a cam member eccentrically mounted upon said tubularmember having its cam surface associated with said clamping memberwhereby the rotation of said cam may cause relative movement between theclamping member and the conduit to clamp 4and unclamp the nozzle to andfrom the head of the fitting, and a valve mechanism for automaticallyshutting off the flow of lubricant through the nozzle when'the parts arein that position required for disengagement of the nozzle from thefitting, said valve mechanism including two tubular members forming apart of said conduit adapted for longitudinal movement toward and awayfrom one another, a spring pressed ball valve normally adapted to closethe mouth of one of said members, and means associated with both of saidmembers for causing the valve to become unseated when the members arecompressed toward one another as during the operation of said cam tocause relative movement bel tween the clamping member andthe conduit.

7. In a lubricant discharge nozzle of the clamp type, a conduit having adischarge orifice, a clamping member mounted for movement along andabout the axis of said conduit for engagement with the head of thelubricant nipple, and cam mechanism including a member mounted on saidconduit and rotatable about an axis transverse to the axis of saidconduit and engaging said clamping member for causing relative axialmovement between the conduit and the clamping member, said rotatablemember forming a. valve for preventing the iiow of lubricant through theconduitr when in one position and providing for the flow of lubricanttherethrough when rotated to another position.

8. A lubricant discharge nozzle comprising a conduit having one endformed with a discharge oriiice adapted to partially receive the head ofa lubricant receiving tting, an elongated tubular member slidablymounted upon said conduit' and provided with a` fitting engagingclamping jaw in cooperative relation with said discharge oriiice wherebyto clamp the conduit upon the head of said fitting upon relative rightline movement between the conduit and the tubular' member, said tubularmember being further formed with a portion of increased internaldiameter at its rearward end, a body having a bore therethrough slidablymounted in said diametrically enlarged portion of the tubular memberhaving one end of its bore communicating with said conduit and theopposite end with a source of lubricant supply, a hand grip rotatablymounted about an axis xed with respect to said body, and an eccentriccam fixed to said hand grip and having its cam surface in constantengagement with said tubular member whereby rotation of the hand grip inone direction may cause relative right line movement between the conduitand the tubular clamping member.

9. A clamp type lubricant discharge nozzle comprising a conduit having adischarge orifice, a clamp member adapted to engage with a lubricantnipple, means for causing relative movement between said clamp memberand said conduit to clamp said conduit in operative engagement with saidnipple, said means including a cam Vmounted for rotation about an axisperpendicular to the axis of the conduit, and a, manually engageablehand grip for 'operating said cam and adjustable means for limiting therelative movement between said conduit and said clamp member in onedirection.

l0. A lubricant discharge nozzle comprising a conduit having a dischargeorifice at one end adapted to partially receive the spherical head ADIELY. DODGE.

